'Blurred Lines,' Robin Thicke's huge breakout hit featuring that T.I. and Pharrell Williams, has topped the Billboard Hot 100 for the fifth week. The track also spends a sixth week at No.1 on the Digital Songs chart, selling 423,000 downloads - equalling last week's total and bettering the previous week's 423,000.

'Lines' is only the second song to sell at least 400,000 downloads in three tracking weeks, joining Gotye's massive hit 'Somebody That I Used To Know' featuring Kimbra, which reached the mark on charts dated April 28, May 5 and May 12, 2012, according to Billboard.com.

'Blurred Lines' has now sold 2.4 million copies date, though concerns still remain over the song's controversial video featuring various well-known models parading around nude while Thicke stands around in a suit.

Last month, a spokeswoman from Rape Crisis, a charity that raises awareness and understanding sexual violence, told The Independent that the Blurred Lines lyrics, "seem to glamourise violence against women and to reinforce rape myths."

In response, Thicke said, "I can't even dignify that with a response, that's ridiculous," explaining, "For me it's about blurring the lines between men and women and how much we're the same.and then there's the other side of it which is the blurred lines between a good girl and a bad girl, and even very good girls all have little bad sides to them."

Robin Thicke Performing At 'Taste of Chicago 2013'

'Blurred Lines' appears to have widened its lead over Daft Punk's 'Get Lucky' in the U.S, gaining by 5% on its summer anthem rival.